S
M
T
W
T
F
S
26
94°
75°
27
94°
78°
28
94°
79°
29
94°
78°
30
95°
79°
31
94°
78°
1
94°
80°
2
90°
71°
3
91°
73°
4
94°
76°
5
93°
75°
6
92°
74°
7
91°
76°
8
90°
75°
9
89°
76°
10
90°
75°
11
90°
76°
12
90°
75°
13
91°
75°
14
92°
76°
15
90°
73°
16
86°
72°
17
88°
76°
18
88°
76°
19
91°
75°
20
91°
76°
21
90°
76°
22
89°
75°
23
87°
76°
24
88°
76°
25
89°
75°
26
90°
76°
27
90°
76°
28
90°
75°
29
91°
75°
30
90°
76°
31
87°
75°
1
88°
74°
2
90°
76°
3
91°
75°
4
90°
75°
5
86°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Slidell
Slidell's August 2026 forecast shows daily high temperatures ranging from 86° to 94°, with overnight lows between 71° and 76°. The average high for August is 90° with an average low of 75°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Slidell. See also: September | October | November.
